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通过解释反射地震剖面,计算处理重磁资料,数学模拟构造应力场以及综合分析其它地质、地球物理资料可知,冲绳海槽是一个正在活动的弧后盆地,具有高热流、强地震、多火山、薄地壳、高重力、活断层等特征。海槽内发育了两组断裂构造,其中NW向断裂是具有分割控制作用的特殊断裂,NNE向断裂是梨形正生长断层;两组断裂从中新世活动至现代。
It is known that the Okinawa Trough is an active back-arc basin with high thermal flux, strong earthquakes, volcanoes, volcanoes and volcanic rocks. By analyzing the reflection seismic sections, calculating and processing the gravity and magnetic data, the mathematically simulated tectonic stress field and the comprehensive analysis of other geophysical and geophysical data, Thin crust, high gravity, active faults and so on. There are two groups of fault structures developed in the trough. Among them, the NW fault is a special fault with segregation control and the NNE fault is a pear-shaped positive fault. Both faults fractured from the Miocene to the modern.